NO159417C - WIDE-RADIATELY, ROTATING SYMMETRIC VEHICLE. - Google Patents
WIDE-RADIATELY, ROTATING SYMMETRIC VEHICLE.Info
- Publication number
- NO159417C NO159417C NO823750A NO823750A NO159417C NO 159417 C NO159417 C NO 159417C NO 823750 A NO823750 A NO 823750A NO 823750 A NO823750 A NO 823750A NO 159417 C NO159417 C NO 159417C
- Authority
- NO
- Norway
- Prior art keywords
- axis
- lamp
- symmetry
- outer diameter
- reflector
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
1. A broad-beam axially symmetrical street lamp having three reflectors (1, 2, 3) in the form of surfaces of rotation, which are arranged above one another around the axis of symmetry (A) of the street lamp, which respectively have a lamp opening in the centre and which reflect the light of the lamp (L) away from the axis of symmetry at a high angle, for a lamp which has a translucent bulb and which is so assigned that its longitudinal axis coincides with the axis of symmetry, characterised in that the generatrix for the surfaces of rotation of the three reflectors are sections consisting of confocal parabolas, whose respective focal points (F) lie on the axis of symmetry (A) at the level of the centre point (M) of the heated discharge tube (B) of the lamp (L) and which are determined by the following values (in each case with a tolerance of + or - 10 %) : see diagramm : EP0085145,P4,F1 where f is the focal length, D is the outer diameter of the larger reflector, alpha is the angle of the main axis - measured clock-wise from the axis of symmetry (A) below the focal point (F) - and d is the diameter of the lamp opening, that the outer diameter (a1) of the lowermost reflector (1) ids represented by a1/D = 0,82 + or - 10 %, and that the second reflector (2) has the largest outer diameter (D), whose value is below 300 mm and preferably amounts to 220 mm + or - 10 %.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3203284A DE3203284C2 (en) | 1982-02-01 | 1982-02-01 | Broad beam, rotationally symmetrical street light |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO823750L NO823750L (en) | 1983-08-02 |
| NO159417B NO159417B (en) | 1988-09-12 |
| NO159417C true NO159417C (en) | 1988-12-21 |
Family
ID=6154483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO823750A NO159417C (en) | 1982-02-01 | 1982-11-10 | WIDE-RADIATELY, ROTATING SYMMETRIC VEHICLE. |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0085145B1 (en) |
| AT (1) | ATE13714T1 (en) |
| DE (1) | DE3203284C2 (en) |
| DK (1) | DK150757C (en) |
| GR (1) | GR77733B (en) |
| NO (1) | NO159417C (en) |
| ZA (1) | ZA828952B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10222635A1 (en) * | 2002-05-17 | 2003-12-18 | Ilias Efthimiou | off nozzle |
| CN101963321B (en) * | 2009-07-23 | 2012-06-27 | 富士迈半导体精密工业（上海）有限公司 | Road illuminating device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE290015C (en) * | ||||
| DE453026C (en) * | 1926-05-26 | 1927-11-26 | Louis Poulsen & Co | Reflector arrangement for indirect lighting |
| US1796468A (en) * | 1927-07-26 | 1931-03-17 | Main Georges | Incandescent electric lamp |
| GB448412A (en) * | 1934-09-03 | 1935-03-04 | Henri Leroudier | An improved projecting apparatus for light or heat rays or sound waves |
| US3593014A (en) * | 1969-01-17 | 1971-07-13 | Gen Signal Corp | Low level light fixture |
-
1982
- 1982-02-01 DE DE3203284A patent/DE3203284C2/en not_active Expired
- 1982-11-05 EP EP82110218A patent/EP0085145B1/en not_active Expired
- 1982-11-05 AT AT82110218T patent/ATE13714T1/en not_active IP Right Cessation
- 1982-11-09 DK DK498382A patent/DK150757C/en not_active IP Right Cessation
- 1982-11-10 NO NO823750A patent/NO159417C/en unknown
- 1982-11-11 GR GR69783A patent/GR77733B/el unknown
- 1982-12-06 ZA ZA828952A patent/ZA828952B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK498382A (en) | 1983-08-02 |
| ZA828952B (en) | 1983-12-28 |
| DK150757C (en) | 1988-04-05 |
| DK150757B (en) | 1987-06-15 |
| DE3203284A1 (en) | 1983-08-18 |
| ATE13714T1 (en) | 1985-06-15 |
| DE3203284C2 (en) | 1984-08-02 |
| EP0085145A1 (en) | 1983-08-10 |
| GR77733B (en) | 1984-09-25 |
| EP0085145B1 (en) | 1985-06-05 |
| NO159417B (en) | 1988-09-12 |
| NO823750L (en) | 1983-08-02 |
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